The youngest of six children, at an early age Areo was sold off to the Bearded Priests of Norvos. Upon completion of his training he was symbolically wedded to his axe, as evidenced by the brand visible on his chest. He traveled with Mellario of Norvos to Dorne when she married Doran consequently entering Areo into his service.

Doran and Mellario's children grew to adulthood while Areo was in their service, and he has even developed a father-like affection for Arianne Martell, referring to her as "little princess." Despite any qualms he may have about the orders he receives, he remains faithful to his prince, and to the simple vow: "Serve, Obey, Protect."

It is Areo who gives Doran the letter from King's Landing that informs them of the death of Oberyn Martell. He walks beside his Prince when he travels from the Water Gardens to Sunspear. He is sent to take the Sand Snakes under house arrest so they cannot cause any problems in Dorne.